Australia announced AU$3.9 billion (US$2.8 billion) in spending on Sunday as a “down payment” on a new facility to build nuclear submarines under the Aukus security pact with Britain and the United States. The vessels are central to a strategy enhancing long-range strike capabilities in the Pacific, particularly against China. Defence Minister Richard Marles stated that the Osborne facility near Adelaide positions Australia to deliver sovereign nuclear-powered submarine capabilities for decades.
Australia unveiled the AU$3.9 billion investment on February 15, 2026, as part of the Aukus pact, which seeks to equip the country with a fleet of advanced submarines from the United States and foster cooperation in warfare technologies. The sale of the submarines is set to begin in 2032, with the overall deal potentially costing up to US$235 billion over the next 30 years, including technology transfer for Australia to build its own vessels in the future.
The facility in Osborne, near the southern city of Adelaide, will be central to this effort, with an estimated long-term spend of AU$30 billion. Defence Minister Richard Marles said: “The transformation under way at Osborne shows Australia is on track to deliver the sovereign capability to build our nuclear-powered submarines for decades to come.” This development underscores Australia's push to bolster its defense in the Pacific amid geopolitical tensions, particularly with China.
The Aukus agreement, launched in 2021, has drawn significant attention, and this funding announcement marks a step toward practical implementation. Despite the substantial costs, the Australian government views it as essential for national security enhancement.
